2 Peter 2:22

But it is happened to them according to the true proverb, The dog is returned to his own vomit, and, The swine that was washed to her wallowing in the mire.

Treasury of Scripture Knowledge

Summary

But it is happened unto them according to the true proverb, The dog is turned to his own vomit again; and the sow that was washed to her wallowing in the mire.

Bible References

General references

Matthew 7:27
and the rain fell upon it, and the floods came, and the winds blew, and beat upon that house, and it fell, and the fall thereof was great.
Luke 14:30
all that see it, should deride him, saying, this man began to build and was not able to finish.
Luke 17:32
Remember Lot's wife. Whosoever shall seek to save his life, shall lose it;
1 Timothy 5:15
For some are already turned aside after Satan.